alpine是面向安全应用的轻量级linux发行版本，拖下来看一下
[root@localhost ~]# docker pull alpine
Using default tag: latest
latest: Pulling from library/alpine
921b31ab772b: Pull complete
Digest: sha256:ca1c944a4f8486a153024d9965aafbe24f5723c1d5c02f4964c045a16d19dc54
Status: Downloaded newer image for alpine:latest
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
alpine latest 4d90542f0623 2 weeks ago 5.58MB
ubuntu 14.04 2c5e00d77a67 7 weeks ago 188MB
registry 2 f32a97de94e1 3 months ago 25.8MB
hello-world latest fce289e99eb9 6 months ago 1.84kB
这个镜像很小，只有几M
运行这个镜像，进去看看有哪些命令
[root@localhost ~]# docker run --rm -it alpine sh / # ls bin dev etc home lib media mnt opt proc root run sbin srv sys tmp usr var / # cd bin/ /bin # ls arch date fdflush kbd_mode mknod ping6 setpriv umount ash dd fgrep kill mktemp pipe_progress setserial uname base64 df fsync link more printenv sh usleep bbconfig dmesg getopt linux32 mount ps sleep watch busybox dnsdomainname grep linux64 mountpoint pwd stat zcat cat dumpkmap gunzip ln mpstat reformime stty chgrp echo gzip login mv rev su chmod ed hostname ls netstat rm sync chown egrep ionice lzop nice rmdir tar conspy false iostat makemime pidof run-parts touch cp fatattr ipcalc mkdir ping sed true /bin # [root@localhost ~]# [root@localhost ~]# [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ddca7736b585 alpine "sh" About a minute ago Up About a minute romantic_wiles e37529b58640 registry:2 "/entrypoint.sh /etc…" About an hour ago Up About an hour 0.0.0.0:5000->5000/tcp registry 5fb08267227e ubuntu:14.04 "/bin/bash" 2 hours ago Up 2 hours ubuntu_4 be9d5c6f2a25 ubuntu:14.04 "/bin/bash" 3 hours ago Up 3 hours ubuntu_3 dca3d42e5e3e ubuntu:14.04 "/bin/bash" 3 hours ago Exited (0) 3 hours ago ubuntu_2 7103a04f97d3 ubuntu:14.04 "/bin/bash" 5 hours ago Up 5 hours ubuntu [root@localhost ~]#
删除容器试一下，报错没有退出，然后使用stop退出 [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ddca7736b585 alpine "sh" About a minute ago Up About a minute romantic_wiles e37529b58640 registry:2 "/entrypoint.sh /etc…" About an hour ago Up About an hour 0.0.0.0:5000->5000/tcp registry 5fb08267227e ubuntu:14.04 "/bin/bash" 3 hours ago Up 3 hours ubuntu_4 be9d5c6f2a25 ubuntu:14.04 "/bin/bash" 3 hours ago Up 3 hours ubuntu_3 dca3d42e5e3e ubuntu:14.04 "/bin/bash" 3 hours ago Exited (0) 3 hours ago ubuntu_2 7103a04f97d3 ubuntu:14.04 "/bin/bash" 5 hours ago Up 5 hours ubuntu [root@localhost ~]# docker rm ddca Error response from daemon: You cannot remove a running container ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446. Stop the container before attempting removal or force remove [root@localhost ~]# docker stop ddca ddca
可以发现，停止容器后，容器就被删除了，这是因为我们创建的时候指定了-rm选项，所以退出就删除了，这个过程，可以结合events来观察
2019-07-05T00:48:43.917483851+08:00 image pull alpine:latest (name=alpine) 2019-07-05T00:49:33.746443011+08:00 container create ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14 name=romantic_wiles) 2019-07-05T00:49:33.748899933+08:00 container attach ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14 name=romantic_wiles) 2019-07-05T00:49:33.789490362+08:00 network connect 05475ea368337254dea611bfff0a86005befb5ea3da6e3bb6b7b3d40bbe4e37736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446, name=bridge, type=bridge) 2019-07-05T00:49:34.479785409+08:00 container start ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a144name=romantic_wiles) 2019-07-05T00:49:34.485932045+08:00 container resize ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14age=alpine, name=romantic_wiles, width=132) ##新建容器，并启动 2019-07-05T00:51:25.794561487+08:00 container kill ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446 (image=alpine, name=romantic_wiles, signal=15) 2019-07-05T00:51:35.841292955+08:00 container kill ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446 (image=alpine, name=romantic_wiles, signal=9) 2019-07-05T00:51:36.322103770+08:00 container die ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446 (exitCode=137, image=alpine, name=romantic_wiles) 2019-07-05T00:51:36.408362193+08:00 network disconnect 05475ea368337254dea611bfff0a86005befb5ea3da6e3bb6b7b3d40bbe4e33e (container=ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446, name=bridge, type=bridge) 2019-07-05T00:51:36.436651884+08:00 container stop ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446 (image=alpine, name=romantic_wiles) 2019-07-05T00:51:36.438911920+08:00 container destroy ddca7736b58589d96d2af216edf9488be1baab2ab5a3d7a122f871f128a14446 (image=alpine, name=romantic_wiles) ##停止容器，可以看到使用的是kill，因为加了-rm选项，所以退出就删除了这个容器